The July 2013 warrants with strike $64.27 allow you to set up a risk free ride:
Buy 643 * X warrants at $0.40 and write/short X calls April 65 at $2.60, net investment "zero".
In case in April the price of FNV is below $65, you can write/short the call July 65 for extra cash.
In case the price is above $65, the net value of the warrants minus the calls is at least $73 * X
6,430 warrants and 10 short calls, gives you a vacation bonus of $730. Risk free.....